Late at night, when the owls are out, some people are awakeà ;--and doing all sorts of interesting things!   They are on the night shift.   Open this book, and you will discover the nighttime world of people who go to work when you are sleeping:   Street sweeper Window dresser Radio DJ Security guard Newspaper printer Bridge painter Zookeeper Freighter captain Truck driver Road worker Donut baker Fisherman Tug boat captain Waitress   Come meet them all!.